Evaluative means for detecting inflammatory reactivity
    1.
    发明授权
    Evaluative means for detecting inflammatory reactivity 失效
    用于检测炎症反应性的评估手段

    公开(公告)号:US5006330A

    公开(公告)日:1991-04-09

    申请号:US277708

    申请日:1988-11-30

    CPC classification number: G01N33/5091 A61K31/40 A61K31/495 Y10S514/825

    Abstract: Inbred Lewis (LEW/N) female rats develop an arthritis in response to Group A streptococcal cell wall peptidoglycanpolysaccharide (SCW) which mimics human rheumatoid arthritis. Histocompatible Fischer (F344/N) rats, on the other hand, do not develop arthritis in response to the same SCW stimulus. To evaluate this difference in inflammatory reactivity between the two strains, the function of the hypothalamic-pituitary-adrenal axis and its ability to modulate the development of the inflammatory response was studied. It has been found that, in contrast to F344/N rats, LEW/N rats had markedly impaired plasma ACTH and corticosterone responses to SCW, recombinant human Interleukin-1 alpha (IL-1 alpha), the serotonin agonist, quipazine, and synthetic rat corticotropin-releasing hormone (CRH). In addition, LEW/N rats compared to F344/N rats had smaller adrenal glands and larger thymuses. Treatment of LEW/N rats with replacement doses of dexamethasone decreased the severity of their SCW-induced arthritis. Conversely, treatment of F344/N rats with the glucocorticoid receptor antagonist, RU 486, or the serotonin (5-HT.sub.2) antagonist, LY53857, was associated with development of severe inflammatory disease, including arthritis, in response to SCW. These findings support the concept that susceptibility of LEW/N rats to SCW arthritis is related to abnormal hypothalamic-pituitary-adrenal (HPA) axis responsiveness to inflammatory and other stress mediators and that resistance of F344/N rats to SCW arthritis is regulated by an intact HPA axis-immune system feedback loop.

    Abstract translation: 近交路易斯(LEW / N)雌性大鼠针对模拟人类类风湿关节炎的A组链球菌细胞壁肽聚糖多糖(SCW)产生关节炎。 另一方面,组织相容性Fischer(F344 / N)大鼠不会对相同的SCW刺激产生关节炎。 为了评估两种菌株之间的炎症反应性差异,研究了下丘脑 - 垂体 - 肾上腺轴的功能及其调节炎症反应发展的能力。 已经发现,与F344 / N大鼠相比,LEW / N大鼠对SCW,重组人白细胞介素-1α(IL-1α),血清素激动剂,喹地平和合成的血浆ACTH和皮质酮反应明显受损 大鼠促肾上腺皮质激素释放激素(CRH)。 此外,与F344 / N大鼠相比,LEW / N大鼠具有较小的肾上腺和较大的胸腺。 用替代剂量的地塞米松治疗LEW / N大鼠降低其SCW诱导的关节炎的严重程度。 相反,用糖皮质激素受体拮抗剂RU 486或5-羟色胺(5-HT2)拮抗剂LY53857处理F344 / N大鼠与SCW相关的严重炎症性疾病(包括关节炎)的发展有关。 这些发现支持LEW / N大鼠对SCW关节炎的易感性与异常的下丘脑 - 垂体 - 肾上腺(HPA)轴对炎症和其他应激介质的反应性有关的概念,F344 / N大鼠对SCW关节炎的抵抗力由 完整的HPA轴免疫系统反馈回路。

    Evaluative means for detecting inflammatory reactivity
    3.
    发明授权
    Evaluative means for detecting inflammatory reactivity 失效
    用于检测炎症反应性的评估手段

    公开(公告)号:US5209920A

    公开(公告)日:1993-05-11

    申请号:US412294

    申请日:1989-09-25

    Abstract: Inbred Lewis (LEW/N) female rats develop an arthritis in response to Group A streptococcal cell wall peptidoglycanpolysaccharide (SCW) which mimics human rheumatoid arthritis. Histocompatible Fischer (F344/N) rats, on the other hand, do not develop arthritis in response to the same SCW stimulus. To evaluate this difference in inflammatory reactivity between the two strains, the function of the hypothalamic-pituitary-adrenal axis and its ability to modulate the development of the inflammatory response was studied. It has been found that, in contrast to F344/N rats, LEW/N rats had markedly impaired plasma ACTH and corticosterone responses to SCW, recombinant human Interleukin-1 alpha (IL-1 alpha), the serotonin agonist, quipazine, and synthetic rat corticotropin-releasing hormone (CRH). In addition, LEW/N rats compared to F344/N rats had smaller adrenal glands and larger thymuses. Treatment of LEW/N rats with replacement doses of dexamethasone decreased the severity of their SCW-induced arthritis. Conversely, treatment of F344/N rats with the glucocorticoid receptor antagonist, RU 486, or the serotonin (5-HT.sub.2) antagonist, LY53857, was associated with development of severe inflammatory disease, including arthritis, in response to SCW. These findings support the concept that susceptibility of LEW/N rats to SCW arthritis is related to abnormal hypothalamic-pituitary-adrenal (HPA) axis responsiveness to inflammatory and other stress mediators and that resistance of F344/N rats to SCW arthritis is regulated by an intact HPA axis-immune system feedback loop.

    Abstract translation: 近交路易斯(LEW / N)雌性大鼠针对模拟人类类风湿关节炎的A组链球菌细胞壁肽聚糖多糖(SCW)产生关节炎。 另一方面,组织相容性Fischer(F344 / N)大鼠不会对相同的SCW刺激产生关节炎。 为了评估两种菌株之间的炎症反应性差异,研究了下丘脑 - 垂体 - 肾上腺轴的功能及其调节炎症反应发展的能力。 已经发现,与F344 / N大鼠相比,LEW / N大鼠对SCW,重组人白细胞介素-1α(IL-1α),血清素激动剂,喹地平和合成的血浆ACTH和皮质酮反应明显受损 大鼠促肾上腺皮质激素释放激素(CRH)。 此外,与F344 / N大鼠相比,LEW / N大鼠具有较小的肾上腺和较大的胸腺。 用替代剂量的地塞米松治疗LEW / N大鼠降低其SCW诱导的关节炎的严重程度。 相反,用糖皮质激素受体拮抗剂RU 486或5-羟色胺(5-HT2)拮抗剂LY53857处理F344 / N大鼠与SCW相关的严重炎症性疾病(包括关节炎)的发展有关。 这些发现支持LEW / N大鼠对SCW关节炎的易感性与异常的下丘脑 - 垂体 - 肾上腺(HPA)轴对炎症和其他应激介质的反应性有关的概念,F344 / N大鼠对SCW关节炎的抵抗力由 完整的HPA轴免疫系统反馈回路。

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